php把文本框回车转换成html换行

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. <html xmlns="http://www.w3.org/1999/xhtml">
  3. <head>
  4. <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
  5. <title>无标题文档</title>
  6. </head>
  7. <body>
  8. <form name="form1" method="post" action="">
  9. <label>
  10. <textarea name="t" cols="45" rows="5"></textarea>
  11. </label>
  12. <label>
  13. <input type="submit" name="button" value="提交" />
  14. </label>
  15. </form>
  16. <?php
  17. if($_POST){
  18. echo str_replace(chr(13),'<br>',$_POST['t']);
  19. }
  20. ?>
  21. </body>
  22. </html>